Universal Audio Woodrow '55 — MIDI Editor & CC Reference

Control the Universal Audio Woodrow '55 from your browser — full MIDI CC reference for 8 parameters, interactive editor, and AI-generated presets. Free, no install.

Nitelite gives the Woodrow '55 a full browser-based control surface: turn every knob, flip every switch, describe the tone you want to the AI Tone Terminal, and save the results — all sent to the pedal live over MIDI (default channel 1). Works free in Chrome, Edge, Opera, or Brave — no install required.

Knobs

Control	MIDI CC	Description
INST VOL	CC 22	Instrument channel gain. Slightly brighter and more aggressive as you turn it up. Ganged (jumped) with Mic Vol when both are turned up. As volume rises, the amp becomes more overdriven and compressed — authentic tweed behavior.
MIC VOL	CC 23	Mic channel gain. Darker and cleaner than the Instrument channel, with more bottom end. Ganged (jumped) with Inst Vol when both are turned up. As volume rises, the amp becomes more overdriven and compressed.
OUTPUT	CC 7	Post-amp output level. At noon (running direct or into other pedals), output is roughly the same as bypassed volume. Not a control on the original amp — added for practical pedalboard use.
ROOM	CC 30	Amount of studio room ambience mixed into the signal. Fully off is like recording in an isolation booth; turning up adds ambience from the tracking-room mics. There is no fully-wet Room sound. Room has no effect when the cab is bypassed (No Cab) or in 4-cable mode — the Speaker LED blinks rapidly to indicate an inactive knob.
TONE	CC 31	The amp's treble frequencies. Interactive with amp gain — as Tone is turned up, the pedal's overdrive and distortion increase. Start around noon for cleaner sounds, increase for more gain and brightness. This is the single tone control on the original 5E3 tweed circuit.
BOOST	CC 41	Boost amount. Fully counter-clockwise (0) = OFF, no boost applied. As the knob is turned up, the selected boost circuit (KP-3K, Stock, or EP-III) adds gain and character to the amp's input.

Switches

Switch	MIDI CC	Positions
SPEAKER	CC 18	BLU15 / JP12 / GB25 / Vee30 / B-Man / JB120 / No Cab
BOOST	CC 17	KP-3K / Stock / EP-III

Footswitches

ON — bypass on CC 12
PRESET — bypass on CC 13

Special MIDI Functions

Boost Enable — CC 40. Toggles the boost circuit on/off independent of the Boost knob position.
Speaker Up — CC 14. Cycles the Speaker switch up through the cab list (momentary).
Speaker Down — CC 15. Cycles the Speaker switch down through the cab list (momentary).
Store Preset (Hold) — CC 16. Emulates holding the STORE switch. Sends value 1 to save the current Live-mode settings to the currently selected preset slot.

Hardware Presets

The Woodrow '55 has 128 hardware preset slots. Nitelite can save your current settings to a slot and recall slots via MIDI program change.